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Construct validity of the Chinese version of the Chalder Fatigue Scale in a Chinese community sample
Wing S Wong1, Richard Fielding
1Department of Applied Social Studies, City University of Hong Kong, Kowloon Tong, Hong Kong.
Objective:
This paper aims to evaluate the factorial validity of the Chinese version of the Chalder Fatigue Scale (ChCFS) using a Chinese community sample.
Methods:
A total of 201 Chinese adults completed the ChCFS, the 12-item Short-Form Health Survey (SF12), and the Hospital Anxiety and Depression Scale (HADS). Confirmatory factor analysis was conducted to assess the fit of a one-factor model, a two-factor correlated model, and a three-factor hierarchical model in both the 14-item and 11-item versions of ChCFS to the current data.
Results:
ChCFS successfully replicated the original two-factor structure in the current Chinese community sample, and the 11-item version demonstrated better data-model fit than the 14-item version. The instrument possessed good internal consistency (Cronbach's alpha=.863). The convergent validity with HADS and divergent validity with SF12 were also evident.
Conclusions:
ChCFS is valid and reliable among Chinese adults in the general population.